Dont count on one unless Nokia gets a sudden influx of Apple inspiration ;-)
The problem is the same as always - Nokia does not want to get into the telco negotiation business with the tablets. They have always argued that to implement any kind of cellular connectivity would raise the price of the tablets beyond acceptable levels because of licensing issues (or similar). I think they caught a break with the WiMAX because it is not governed by telecom but by government - at least in most of Europe as far as I know.